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Methodologies for Removing/Desorbing and Transporting Particles from Surfaces to Instrumentation

机译：从表面去除/解吸和运输颗粒到仪器的方法

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Explosive trace detection (ETD) continues to be a key technology supporting the fight against terrorist bombing threats. Very selective and sensitive ETD instruments have been developed to detect explosive threats concealed on personnel, in vehicles, in luggage, and in cargo containers, as well as for forensic analysis (e.g. post blast inspection, bomb-maker identification, etc.) in a broad range of homeland security, law enforcement, and military applications. A number of recent studies have highlighted the fact that significant improvements in ETD systems' capabilities will be achieved, not by increasing the selectivity/sensitivity of the sensors, but by improved techniques for particle/vapor sampling, pre-concen-tration, and transport to the sensors. This review article represents a compilation of studies focused on characterizing the adhesive properties of explosive particles, the methodologies for removing/desorbing these particles from a range of surfaces, and approaches for transporting them to the instrument. The objectives of this review are to summarize fundamental work in explosive particle characterization, to describe experimental work performed in harvesting and transport of these particles, and to highlight those approaches that indicate high potential for improving ETD capabilities.
机译：爆炸痕量检测（ETD）仍然是支持对抗恐怖爆炸威胁的关键技术。已经开发出具有高度选择性和敏感性的ETD仪器，以检测隐藏在人员，车辆，行李和货物集装箱中的爆炸性威胁，以及用于法医分析（例如爆炸后检查，炸弹制造商识别等）。国土安全，执法和军事应用广泛。最近的许多研究都强调了这样一个事实，即不通过提高传感器的选择性/灵敏度，而是通过改进颗粒/蒸气采样，预浓缩和运输技术，可以实现ETD系统功能的显着改善。到传感器。这篇综述文章代表了一系列研究的重点，这些研究的重点是表征爆炸性粒子的粘合特性，从一系列表面去除/解吸这些粒子的方法以及将其运输到仪器的方法。这篇综述的目的是总结炸药颗粒表征的基础工作，描述在收集和运输这些颗粒中进行的实验工作，并着重指出那些具有提高ETD能力的巨大潜力的方法。

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